US948760A - Self-clearing gill-net-lifting machine. - Google Patents

Description

I. GIBRKE.

SELF CLEARING Gm, NET Llrfrms Mcm.

AYPLIUATIGI FILED APB. 13, 1908.

948,760, Y 'Patented Feb. 8, 1910.

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J. GIBRKE. SEL? CLEARING @ILL NET LIPTNG HAGEINE.

- APPLIGATIOS FILED PB. 13. 1908.

Patented Feb.s`,191o.

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JOHN GIERKE, FAYETTE, MICHGAN.

SELF-CLEARING GILL-NET-LIETING MACHINE.

Specification ni Letters Pat-ent.

Patented Feb. S, 1910.

Application tiled April 13. 1905. Serial No. 426,863,

To ad whom it may concern:

Be it known that l, Jou.\- Gummi, a citizen of the United States, residing at l `avette, in the county of Delta and State of Michigan, ha 'e invented a new and useful lin rox-ement in a Self-Clearing Gill-Net- Li ting Machine, ot' which the following is a specification.

gill net lifting machine, and Vthe object of the invention is a device for drawing gill nets over the side of a vessel through a suitable trough and dropping the same into a suitable box.

"lhe invention consists in a rotating drinn provided with a plurality of radially arranged gripping arms which are automatically projected and withdrawn during rotation of the drum, the said arms engaging the sides of the net and carryingr the saine to the box and then dropping them.

The invention also consists in the novel feat rcs of construction' hereinafter described, pointed out in the claims and shown in the accompanying drawings, in which- Figure l is an inverted plan view of the drum, parts beingr broken away, and parts being shown in section. Fig. 2 is a .section on the line -2-2 of Fig. 1. Fig. 3 is a detail vier.' of one of the net-engaging arms. Fig.

#l is a top plan view of the device. in position. Fig. 5 is a plan view of a track and a cam. Fig. ti is a face view of the track. Fig is a side elevation of the track and cani.

In these drawings 1 represents a drum roinliner upon a shaft 2, which shaft extends downwardly; through a suitable base Qa, and is driven by any suitable means, as for example by belts and pulleys and a dinliie en -f zi'ne. This drum has a depending Range 3 which is cut ont at .suitable intervals as shown at 4. flanged sleeve 5 is mounted upon the shaft Q beneath the drum, theupper Hang-,e of the sleeve being secured to the top of the drum so that the sleeve rotates with the drum and shaft. The drinn is also pro vided upon its under face with twelve pairs o d lpendingr ears 6,'althougl; this number ma)l be increased ordecreased if desired. Each pair of ears is provided with a pin 7 and an arm 8 works between the ears of a pair and is slotted as shown at S= the pin T passug through the slot and limiting inner and outer movement of the :mn between the ears. The outer end portion of the arin is ping meshes of th:- net to he lifted. the said e 'I nrni foruung the movable ineuiber ot a damping jaw and the upper wall of the cut-out portion l through which the. arm

o g warns torn-ingT the fixed member of the lus invention relates to a Self elearnigliE jaw. liach arui also carries u depending lug t) arranged beneath the slot S", a depending pin 1t) upon which is mounted a roller l1, and at its inner end the arm is provided with au invv-'ardly projecting pin l upon which is mounted a roller 12:3. It. will be understood that there are twelve arms, and twelve eut-olt portions or slots 4. that the .said umn* 'are arranged radially hencath the top ot' the drinn and within the .flange il. and Spncel equi-distant apart.

Below the ale 're -i a circular bracket llis secured upon the hase '2 and upon this bracket is mounted an irregular track l5, which extends upon a compound cuive. about: half way around the .shaft and .spaced troni it. andthe highest point of this track is midway its ends. The track l5 carries a brachct lil upon which is mounted a cam track 1T of less length than the track l5 and draped to conforni'to the curvature of that portion of the trzuh if which is Yparallel to Cdl the cani track 1T. Springs 1S are Secured at their upper ends to the pins l and their lower ends to the lower flange of the sleeve and springs if) are secured at their inner ends to the lugs tl and at their outer ends to the flange f3. The prings 1S lift the outer ends of the arm 8 by drawing down the inner ends, the pins T formingr loose pivot points upon which the arins slide and turn,

and the .springs lf) draw the arms outwardly and downwardly at their outer ends to theextenl permitted b v the pins T. l also place adjacent the drum and extending partiallyY lwncath it a curved trough '20, and upon the Side 0f the vessel. und ontcid of the rail7 l place a roller Q1 providcd'with suie lguards 2Q.

The operatiogrof the device is as follows An end ot' the net i.: drawn o' the roller .21A and across` thc ail of the vessel, shown at 9.3. and into the trough Q() where it-is engaged with one of the arms S. a mesh of :he net being gripped betwwn the nriu and the top of one of th" .slots l. The shaft is then rotated and as the not is carried .along the trough and around the drum fl" `outwardly so that. itn'ill again enageg a.

'Letters Patent, is z* :a I y 948,760

meshes of the net will be successively engaged by the other arms 8. As the net ap preaches a receiving box 2l the arms will be withdrawn from engagement with the meshes of the, net by the rollers 13 riding upwardly upon the track 15, thereby lifting the inner ends of the arms against the tension of the springs 1S, and as the roller 13 approaches the highest point of the track 15 the roller l1 will engage the innerv side ofthe cam track l?, which track curves inwardly at this point, and the roller, and the arm which carries it, will he forced inwardly toward the shaft, said in\\'ardl sliding movement tal;- ing place simultaneously with the lifting of the inner end of the arm and the lowering of the outer end. This withdrawal of the arm beneath the drum within the flange will disengage it from the net, and as the drum carries the arm around to its original position and the roller l1 clears the track 1'( the spring l8 will draw down the inner end of the arm and 'the spring l?) will slide the arm new portion of the net.

Hai/ino' thus .Lully described my invention, what I claim as new and desire to secure by l. A device of the kind described comprising a rotatable drum, radially movable arms carried b the drum, said arms enfraging meshes o; a' net, and means for automatically moving said armiinwardly and out of engagement with tbe net when the rotation of the drum has brought the. arms above a predetermined point.

2. A device of the kind described comrising a drum having a depending. slotted ange, net engaging means carried within the drum working through said slot. arms pivoted loosely within the drinn, said arms havinga rocking morementjipon their pivl otal points and a limited sliding movement upon a radial line, a spring mechanism for bringing said arms into engagement with the meshes of a net, and a cam mechanism for retracting said arms after a certain definite period of rotation. 'I

3. A gill net lifting device comprising a slotted drum, radially Aextending arms loosely pivoted within said drum, and Working hrough the slots, said arms having a sliding movement upon their pivot. points, springs for drawing said arms outwardly, springs for drawing the inner ends of the arms downwardly, a track for lifting the inner ends of the arms through a certain period of rotation, and u cam mechanism for forcing the arms inwardly duringr passage of the arms over the highest portion of t'ne track.

4. A device of the. kind described comprising a rotatable slotted drum, arms mounted within the drum, said arms having a vert-ical swinofing movement and' a longitudinally slidaole movement, means for moving said arms outwardly and upwardly during a certain period or" each rotation of the drum, and means for drawing the arms inwardly and forcing their outer ends downwardly d the remaining portion of each rotation ot' the drum.

5. device of the kind described comprising a rotatable drum havinrr a. depending slotted flange, loosely pivote slidable arms carried by the drum and Working in said' slots, means for nornially moving the arms outwardly and elm-'ating' their outer ends, a curved track having its highest. point midway its ends, rollers carried by the arms an traveling upon saidtrack, a cam track arranged adjacent. the first mentioned track and curving inwardly toward the center of the drum, and rollers carried by the arms and engaging the inner sides of said cam track.

JOHN GIERKE. Witnesses:

A. GnoUx, H. D. MARSH..

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